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6014590 |
Systems and methods employing structures having asymmetric mechanical properties to support diagnostic or therapeutic elements in contact with tissue in interior body regions
Structures having asymmetric mechanical properties provide enhanced ability to support therapeutic or diagnostic elements in contact with tissue in an interior body region. The support structure...
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6014579 |
Endocardial mapping catheter with movable electrode
An endocardial mapping catheter for introduction into a chamber of a heart formed by a wall. The flexible elongate tubular member has proximal and distal extremities and extends along a...
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6004269 |
Catheters for imaging, sensing electrical potentials, and ablating tissue
An acoustic imaging system for use within a heart has a catheter (6), an ultrasound device (10) incorporated into the catheter (6), and an electrode (300, 304, 334, 394) mounted on the catheter...
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6006122 |
Medical electrical lead
A transvenous lead specifically designed for coronary sinus implantation. The lead features a fixation ring positioned adjacent to the electrode. The ring is constructed so as to be readily pliable...
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6006137 |
Method for single elecrode bi-atrial pacing
An atrial lead system and a method of employing it to provide a single electrode bi-atrial pacing. The system includes an atrial pacing lead having an electrode located on a distal portion thereof...
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6001095 |
Catheter system having closely spaced distal bipolar electrodes
A catheter system suitable for electrophysiology mapping and radiofrequency ablation of cardiac tissue comprises a catheter shaft having a distal end, a proximal handle, and at least a lumen...
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6001085 |
Coronary sinus catheter
A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the...
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6002956 |
Method of treating using an over-the-wire EP catheter
An over-the-wire electrophysiology catheter which has an emitting electrode on the distal tip electrically connected to a source of high frequency electrical energy. The intravascular device is...
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6002969 |
Cardiac lead with shape-memory structure
A cardiac stimulator lead is provided that includes a lead body that has a connector for coupling to a cardiac stimulator and a flexible insulating sleeve that has a first outer diameter. An...
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5997536 |
Heart catheter with an electrode on a spreadable device
The heart catheter has at least one electrode pole, which is arranged on a spreadable device at the distal end of a catheter shaft. The device comprises at least two struts manufactured from an...
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5997532 |
Ablation catheter tip with a buffer layer covering the electrode
An ablative catheter assembly whose electrode is completely covered by a buffer layer. The buffer layer prevents areas of high current density at the surface of the catheter tip, which helps to...
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5992418 |
Catheter system having safety means and methods thereof
The method for using a catheter system suitable for electrophysiology mapping and radiofrequency ablation of cardiac tissue comprises a catheter shaft having a distal end, a proximal handle, and at...
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5991667 |
Pacing lead with porous electrode for stable low threshold high impedance pacing
A pacing lead, and system for pacing, where the lead has an improved distal tip designed to provide reliable chronic fixation of the electrode-heart interface, while also providing low pacing...
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5983126 |
Catheter location system and method
A system and method are provided for catheter location mapping, and related procedures. Three substantially orthogonal alternating signals are applied through the patient, directed substantially...
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5968087 |
Multi-component lead body for medical electrical leads
A medical electrical lead having an elongated lead body carrying a conductor therein, the lead body being formed of an inner sleeve of a first, relatively more rigid plastic and an outer sheath of...
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5967984 |
Ultrasound imaging catheter with a cutting element
The invention features a catheter having a catheter body of extended length for insertion within a body of a living being. The catheter also includes an ultrasound imaging device disposed within a...
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5967976 |
Apparatus and methods for procedures related to the electrophysiology of the heart
Methods and apparatus are disclosed for use in procedures related to the electrophysiology of the heart, such as identifying or evaluating the electrical activity of the heart, diagnosing and/or...
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5968040 |
Systems and methods using asymmetric multiple electrode arrays
Systems and methods support arrays of multiple electrodes in asymmetric pattern, either radially, or axially, or both. Radial asymmetry makes it possible provide localized density of electrodes....
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5968086 |
Pacing and cardioversion lead systems with shared lead conductors
An implantable electrical lead having an elongated insulative lead body carrying a cardioversion/defibrillation electrode and a sensing electrode spaced from the cardioversion/defibrillation...
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5964795 |
Medical electrical lead
A cardiac pacing lead and a method of its use. The lead has an elongated insulative lead body having a distal section formed into a curved configuration appropriate for use in a coronary...
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5964757 |
Steerable direct myocardial revascularization catheter
A steerable direct myocardial revascularization catheter comprises a catheter body, a control handle, a tip section, and a means for deflecting the tip section by manipulation of the control...
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5964753 |
Integrated cardiac mapping and ablation probe
A probe for cardiac diagnosis and/or treatment has a catheter tube. The distal end of the catheter tube carries first and second electrode elements. The probe includes a mechanism for steering the...
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5964796 |
Catheter assembly, catheter and multi-port introducer for use therewith
A assembly for use in performing a medical procedure within a region in a body of a patient having a vessel therein comprising a multi-port introducer adapted to be inserted into a vessel of the...
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5961513 |
Tissue heating and ablation systems and methods using porous electrode structures
Porous electrode assemblies for tissue heating and ablation systems and methods enable ionic transport of electrical energy to occur substantially free of liquid perfusion.
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5957967 |
Implantable medical lead using stamped conductor and distal loop
An implantable electrical lead having an elongated insulative lead body with a longitudinal lumen therein extending from the proximal end of the lead body to a distal portion of the lead body and...
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5957966 |
Implantable cardiac lead with multiple shape memory polymer structures
A cardiac lead is provided that is capable of deforming in situ to accommodate difficult myocardial structures. The lead includes a connector for coupling to a cardiac stimulator and a flexible...
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5957842 |
High resolution intravascular signal detection
A system for detecting electrical activity within a patient's heart comprising an elongated intravascular device, such as a catheter or guidewire, having a plurality of sensing electrodes on a...
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5957970 |
Method of fabricating a medical electrical lead
A method of producing a lead which is isodiametric or nearly so over the region in which an elongated coiled electrode is located and which can optionally be manufactured starting from a single...
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5954761 |
Implantable endocardial lead assembly having a stent
Various endocardial lead assemblies are disclosed that may be particularly useful for placement within the coronary sinus. The lead assemblies may have open ends or closed ends. Lead assemblies...
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5954649 |
Catheter system having ultrasound locating capabilities
An improved catheter system having ultrasound locating capabilities comprising a locator catheter and an ultrasound receiver catheter resulting in an effective electrophysiology procedure without...
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5954760 |
Helical winding for a cardiac lead
A helical winding formed by a wound ribbon and having a length considerably exceeding its diameter, is adapted for implantation into a patient's body. Adjacent turns of the winding partially...
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5954759 |
Fracture resistant medical electrical lead
An implantable medical lead provided with a coiled conductor extending from a connector assembly at a proximal end of the lead to an electrode on the lead body and a stranded conductor extending...
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5954665 |
Cardiac ablation catheter using correlation measure
Apparatus for endocardiac therapy, including an elongate probe for insertion into the heart of a subject, the probe having distal and proximal ends. The probe includes an ablation device near the...
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5951471 |
Catheter-based coronary sinus mapping and ablation
A catheter-based method for coronary sinus mapping, pacing, and ablation, wherein a flexible electrode catheter, having a tip electrode with suspension structure, is pre-shaped to snugly fit into...
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5948014 |
Implantable stimulation system having a single-pass, tripolar lead and programmable polarity
A single-pass tripolar pacing/lead system for pacing and sensing electrical activity in the heart of a patient in one of a VDD or VDDR fashion. The lead system is capable of bipolar sensing of the...
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5941251 |
Systems for locating and guiding operative elements within interior body regions
Systems and methods for locating an operative element within an interior body space use a locating probe, which includes at least one transmitting element to transmit an electric waveform output...
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5941904 |
Electromagnetic acceleration transducer for implantable medical device
An electromagnetic accelerometer includes a rigid shell with a cavity in which two magnets are fixed at either and of the rigid shell and one magnet is allowed to move between the fixed magnets....
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5938659 |
Catheter system having cooled multiple-needle electrode and methods thereof
A method for operating a steerable ablation catheter having at least one multiple-needle electrode at the tip section of an inner catheter within a heart chamber, wherein the ablation catheter...
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5938694 |
Electrode array catheter
An electrode array catheter, typically used for mapping, pacing and ablation, includes a flexible delivery sheath (36, 64) and an electrode assembly (2, 62) slidably mounted within the delivery...
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5938602 |
Catheter tracking system and method
A catheter tracking system for tracking and monitoring a position of a catheter head within the human or animal body includes a self-referencing catheter. The self-referencing catheter includes an...
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5935160 |
Left ventricular access lead for heart failure pacing
An elongated monopolar or bipolar coronary vein lead having a reduced outer diameter and especially adapted to be advanced into a selected coronary vein for delivering a pacing signal to a...
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5935159 |
Medical electrical lead
An improved lead body for implantable leads comprising a longitudinally extending core section provided with longitudinally extending grooves in which conductors are located and an outer tubular...
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5935102 |
Steerable electrode catheter
A steerable catheter includes control handle having a generally tubular housing with a longitudinal slot therein in which an axially or longitudinally movable two-part slideblock resides, and a...
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5935079 |
Systems and methods for positioning multiple electrode structures in electrical contact with the myocardium
Systems and methods evaluate electrical contact between the myocardium and one or more electrodes inside the heart. The systems and methods electrically sense electrical contact between the...
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5928224 |
Device for the treatment of damaged heart valve leaflets and methods of using the device
A device and method for treating infected or damaged heart valve tissue by selectively heating, applying pressure, or both to the heart valve tissue to sterilize any infected portion of the tissue,...
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5928277 |
One piece defibrillation lead circuit
An implantable electrical lead having a lead body with a longitudinal lumen therein and a stranded electrical conductor located in the lumen and which exits the lumen at a distal portion of the...
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5928228 |
Flexible high density multiple electrode circuit assemblies employing ribbon cable
An electrode circuit has a distal region for carrying at least one electrode, a proximal region for connection to external apparatus, and an intermediate region electrically coupling the distal...
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5925073 |
Intravenous cardiac lead with wave shaped fixation segment
An intravenous lead for use with a cardiac device for implantation in the coronary venous system of the heart includes a lead body that is adapted to be routed through the vascular system into the...
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5925038 |
Expandable-collapsible electrode structures for capacitive coupling to tissue
Electrode assemblies and associated systems employ a nonporous wall having an exterior for contacting tissue. The exterior peripherally surrounds an interior area. The wall is essentially free of...
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5921924 |
Mapping and ablation catheter system utilizing multiple control elements
A recording and ablation catheter method and system for creating linear lesions in an atrial or other chamber of a heart is disclosed which includes an array of readily controlled electroded...
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